Gas-engine starter.



C. F. JENKINS.

GAS ENGINE STAETER; APPLIOATION FILED 110V. 11, 1910.

1,047,527. Patented B61111912.

. f num lbe rather striking.

Ulli t lei t natuur caricia To all whom. it may concern."

Be it known that l., CHARLES FRANCIS Jen nin s, citizen of the United States, residing at Washington, District of Columbia,

have invented certain new and useful Improvements in Gas/Engine Starters, of which the following is a specification.

rlhis invention relates to that class of apparatus known as gas engine starters, and consists primarily of a pump for an elastic fluid and a distributer thereforn -@ne of the objects of the invention is the design of such a combination as will permit of starting and stopping the pump without disturbing the timing of the distributer.

Another object is the selection of such a design of the rotor of the distributer that it will have practically no friction when notactually in use, and yet seat itself without leaking when the fluid is turned onto it.

After trying a great many different forms of distributer valves, the present one has been found so superior yto other types as to The tapers with a more sharp angle tend to wedge themselves into the body of the distributor, while the Hat ones tend to develop leaky spots.y The distributer of this application seats itself tightly without bringing undue strain on the rotating mechanism and continues tight in use. l

In the drawings, Figure l is a sectional view of the apparatus, on the line {v -fj of Fig. 2; Fig. 2 is a front view ofthe distributer with the cap removed; Fig. 3 is a view of theclutch for connecting and disconnect ing the pump; and Fig. l a diagram of the parts in use.

Like symbols refer to like parts, in which?d A is a pump cylinder; D a piston therein; C a crank for reciprocating the piston; D the crank-shaft, to nhich is tixe'dly attached the single-tooth ratchet E. Mounted loosely on the huh of the ratchet E', is a gear F having a pawl Gr mounted therein to engage with the single-tooth E (Fig. 3) of the ratchet E. The gear F is prevented from working od the encl'of the hub of lil by av collar E. To the gear l? is attached a yoke H into which the stem I of the rotor J, of the distributer K, tits, being pinned thereto. d shaft I are no: integral. The

Shaft D an body of the distributer K has four openings peciication of etters Patent.

Application tiled November 11,

Patented @eeno i7, MM2..

icio. serial no. 591,797.

K therein, shown dotted in Fig. 2, communicating with the passages K, which latter, by proper piping (not shown), lead to the 1st, 3rd, Lith and 2nd cylinders, respectively, as this type of engine is usually made. The distributer has a gastight cap fitted thereto, having an opening therein adapted to receive a pipe from a source of compressed fluid, as lt, in Fig. Ll. The rotor J has a single opening therein, so located as to pass over and coincide in succession with the four openings in the distributor body.

lt will be observed that, as the shaft l) is not rotated by the gear F except as the paul G engages with the tooth Ethe gear F may rotate freely without imparting motion to the pump. However, as the gear F is ixedly attached to the rotor J, through the rotary motion is imparted to the rotor at all times. And if the gear is twice the size of the gear on the engine shaft (not shown), with which it is in engagement through intermediate gears, as 'in rotating electric timers, it (J) will rotate in time with the power strokes of the engine. uter is always in time with the engine, while the pump may be thrown into and out of action as the pressure in the tank may require it, automatically or by hand.

The operation of the device, obvious to those skilled in the art, is as follows: rlhe reservoir E, having been charged with carbureted gas in any preferred manner, as by hand or by means of the pump shown herein, and it is desired to start the engine, the v'1` ve S is opened permitting the compressed gas to iow through the distributer to .the secon cylinder. of the engine (as the distributer stands in Fig. 2). This will push the piston down, and, if the spark is set late, explode the charge as the spark is made, suddenly accelerating the movement of the piston causing it to take up its regular cycle with the least amount ofthe compressed gas in the reservoir.

No novelty is claimed in the clutch, as any suitable form of device for engaging an disengaging the separate parts thereof, would answer as Wellas that form shown. Nor Ais it essential whether the pump be sin* gie or multiple cylinder; any convenient form which will pump up the pressure is ac ceptable.

eol

yoke H,

That is, the distrib- What I claim, therefore, is-

In apparatus of the class described, the combination with a pump casing, p1unger,. and actuating crank shaft having an end projecting from'the casing, of a, rotary distrbuter supported upon said end with its shaft telescoping the same and revoluble thereon, power devices acting between the pump easing and the terminal face of said Washington, D. C.

end to rotate the distbuter shaft, and means 10 for at will causing the distributer 'shaft to rotate the crank shaft.

In testimony signature in presence of two witnesses.

whereof I have axed my CHARLES FRANCIS JENKINS.

Wltnesses G. Lovin,l JAMES Cmwmnn.

by addressing' the Commissioner of Tatent, 

